As of Saturday, 17 April 2021, this test has come to an end when I polished the sealant off in preparation to apply a coating. If my math is correct, the Wolfgange SiO2 Sealant was on my car for eight days short of seven months.
I didn`t end the test because I didn`t like the sealant or it had degraded to the point I needed to apply something new. The opposite is true. I really liked this sealant and the stuff simply wouldn`t die! Time and weather work against me in the spring when it comes to coating applications, and with a busy month ahead of me I couldn`t wait any longer.
When I washed the car on Friday evening, the sealant was still making a strong showing of being present and working. In fact, after a couple good washings with Hyperwash, it might have actually IMPROVED from my last update. To the end, it looked pretty good and grime, bug splatters and bird droppings were fairly easy to remove.
Overall I liked this sealant and it is really the only "modern" sealant I`ve used. Before jumping to coatings I used the Klasse Twins and then Collinite 845. Neither are exactly new! This sealant was far, far easier to apply, appears to be more durable, looks great, and has some coating-like (but not identical) water behavior. Where 845 tends to give a carnauba like deep glowing shine, the Wolfgang tends to be more glossy and reflective.
I`m not confident this test really stressed the Wolfgang sealant to it`s full measure. My car spent the time between Thanksgiving and New Years mostly parked in the garage while I teleworked. It sat out through all of February and March which did subject it to some appalling winter weather, so that might of made up for the "easy" life it experienced before that. I`d be confident in saying it will last six months, maybe longer depending on climate.
